Pretty much with Dem, BUY USED and buy the best you can afford. Hardest thing is the world is to want to practice on a guitar that makes it difficult. I play and won't play a guitar or any instrument I don't like. Also, a musical instrument is the one thing I would most assuredly avoid buying online. Can be the same year, make, and model with consecutive serial #'s, but feel and play entirely different. Don't attempt to run it through your home stereo unless you really know what you are doing,go ahead and buy a guitar amp. You get more of an electric sound(plus you can get reverb, chorusing, overdrive all built in) and you will be taking away the likelihood of damage to your home stereo, because one slight foul up and you will be popping a tweeter in a home system.
I would suggest, only a suggestion, but if you are starting out, it might behoove you to to look at an acoustic electric. Takamine and Seagull make a couple of nice ones, all available used, though in most cases not as easy to come by as an electric.
That way to practice you don't have to plug it in and you can practice anywhere. Some of the best blues playing in the world is on Clapton's Unplugged, and that is on an acoustic Martin. . I think the Seagull Artist series cutaway(why yes, I do own one)is one of the best playing acoustic electrc cutaways I have played for the money. Good luck and good playing.